$ explain 'du -s * | sort -n | tail'
du(1)
Summarize disk usage of the set of FILEs, recursively for directories. Mandatory arguments to long
options are mandatory for short options too.
-s (-s, --summarize)
display only a total for each argument
*
-------------------------------------------------------------------------------------------------pipe--
sort(1)
Write sorted concatenation of all FILE(s) to standard output. With no FILE, or when FILE is -, read
standard input. Mandatory arguments to long options are mandatory for short options too.
-n (-n, --numeric-sort)
compare according to string numerical value
-------------------------------------------------------------------------------------------------pipe--
tail(1)
Print the last 10 lines of each FILE to standard output. With more than one FILE, precede each with a
header giving the file name. With no FILE, or when FILE is -, read standard input. Mandatory
arguments to long options are mandatory for short options too.
$